Operating System Firewall (OSFirewall™)
No anti-virus or anti-spyware product is 100% effective, so ZoneAlarm invented the OS Firewall. The OS Firewall monitors behaviors within your computer to spot and stop even the most sophisticated new attacks that bypass traditional anti-virus and security suites.

0-Hour Protection – prevents silent outbreaks from gaining system access even before the threat is known by other security programs

Program Control – restricts programs from malicious activities, blocking attacks that by-pass other defenses.

Early Boot Protection – Uniquely protects your operating system during start-up before most security products have even loaded.

Way Firewall
Stops Internet attacks at the front door and even catches thieves on their way out. Our 2-way firewall proactively protects against inbound and outbound attacks while making you invisible to hackers.

Inbound & Outbound – monitors and blocks threat traffic in or out.

Full Stealth Mode – makes you invisible to hackers.

Kill Controls – instantly disable malicious programs.

Passes Independent Leak Tests* – passes 100% of tests compared to an industry average of 40%.

Daily Credit Monitoring and Fraud Alerts – monitors your credit reports daily with email alerts and reports, and notifies you if there have been changes, which is often an indication of identity theft (US only).

Advanced Download Protection - New!
Automatically analyzes your downloads to determine if they are safe or malicious. Includes an advanced security check that runs and analyzes the download in a protected environment.

Instant Security Check – Automatically checks programs you download through your web browser with a list of known dangerous downloads and intelligently analyzes the program itself.

Deep Security Check – Provides an option to run the download in a virtual protected environment to more deeply analyze it for malicious behavior.